Valence Electrons and Stability in BH3

Dr. B. explains how to draw the Lewis structure for BH3. Boron, with 3 valence electrons, is in the center, surrounded by three hydrogens, each contributing one electron. The total of 6 valence electrons is used to form bonds, satisfying hydrogen's outer shell. Boron is stable with 6 electrons, and formal charges confirm the structure's correctness.

How many valence electrons does Boron have?

• 5

• 3

• 1

• 7

What is the total number of valence electrons in BH3?

• 8

• 10

• 6

• 4

Where is Boron placed in the Lewis structure of BH3?

• At the top

• In the center

• On the left

• On the right

How many electrons does each Hydrogen atom have in its outer shell in BH3?

• 1

• 2

• 3

• 4

Why is Boron stable with only 6 valence electrons in BH3?

• It gains electrons from Hydrogen

• It is naturally stable with 6 electrons

• It shares electrons with another molecule

• It forms a double bond